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Sarkar P, Maji M, Dey A. Kinetic modelling of high concentration 4-Nitrophenol biodegradation by an isolated bacterial consortium and post-treatment ecotoxicity analysis. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zhang Z, Yu Y, Xi H, Zhou Y. Single and joint inhibitory effect of nitrophenols on activated sludge. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 294:112945. [PMID: 34116309 DOI: 10.1016/j.jenvman.2021.112945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/27/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
In this study, single and joint inhibitory effects of nitrophenols on activated sludge and variations on the content of extracellular polymeric substances (EPS) were investigated. Results indicate that the nitrophenols adversely affected the organic and NH3-N removal of activated sludge and the adverse effect of nitrophenols on autotrophic bacteria was higher than that on heterotrophic bacteria. Further, 2,4-dinitrophenol (2,4-DNP) demonstrated the highest inhibitory effect, followed by 4-nitrophenol (4-NP) and 2-nitrophenol (2-NP), and the combined effects of binary and ternary nitrophenols induced additive toxicity. At various concentrations and toxicant ratios, 2,4-DNP, as the dominant toxic nitrophenol, was the major contributor to the joint inhibition effects of the mixed nitrophenols. At lower concentrations of 2-NP (below 100 mg/L), 4-NP (below 50 mg/L), and 2,4-DNP (below 10 mg/L), large amounts of both tightly bound EPS (TB-EPS) and loosely bound EPS (LB-EPS) were secreted for the normal physiological activities of the microbiological cells. After further stimulation with higher concentrations of 2-NP (above 100 mg/L), 4-NP (above 50 mg/L), and 2,4-DNP (above 10 mg/L), the inhibitory effect of nitrophenols on bacterial metabolism evidently increased. However, the EPS production sharply reduced, particularly with respect to protein production. Parallel factor analysis for TB-EPS and LB-EPS further confirmed that the major proteins were tyrosine, tryptophan, and aromatic proteins. Thus, this study provides new insights into the inhibitory effects of mixed nitrophenols, which are frequently found in pharmaceutical and petrochemical effluents.
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Affiliation(s)
- Zhuowei Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing, 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Yin Yu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing, 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Hongbo Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing, 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
| | - Yuexi Zhou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing, 100012, China; College of Water Sciences, Beijing Normal University, Beijing, 100875, China.
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Lu C, Wang X, Zhang J, Liu Z, Liang Y, Dong S, Li M, Chen J, Chen H, Xie H, Xue L, Wang W. Substantial emissions of nitrated aromatic compounds in the particle and gas phases in the waste gases from eight industries. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 283:117132. [PMID: 33887668 DOI: 10.1016/j.envpol.2021.117132] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
Nitrated aromatic compounds, the ubiquitous nitrogen-containing organic pollutants, impact the environment and organisms adversely. As industrial raw materials and intermediates, nitrated aromatic compounds and their aromatic precursors are widely employed in the industrial production activities. Nevertheless, their emission from industrial waste gases has so far not been studied extensively. In this study, the concentrations of 12 nitrated aromatic compounds in the particle and gas phases downwind of 16 factories encompassing eight industries (i.e., pharmaceutical, weaving and dyeing, herbicide, explosive, painting, phenolic resin, paper pulp and polystyrene foam industries), were determined by ultra-high-performance liquid chromatography-mass spectrometry. Their concentrations in the particle and gas phases from different factories ranged from 114.7 ± 63.5 to 296.6 ± 62.5 ng m-3 and 148.7 ± 7.4 to 309.8 ± 26.2 ng m-3, respectively, thus, exhibiting significantly high concentrations as compared to the background sites. Among the 12 detected species, 4-nitrophenol, 5-nitrosalicylic acid, 3-nitrosalicylic acid and 4-methyl-2,6-dinitrophenol were observed to be the predominant species, with total fractions up to 47.9-72.3% and 63.1-70.3% in the particle and gas phases, respectively. Their emission profiles with respect to the industrial activities exhibited large discrepancies as compared to the combustion sources, thus, indicating different formation mechanisms. The emission ratios of particulate nitrated aromatic compounds owing to the industrial activities were estimated between 0.5 ± 0.2 and 4.3 ± 1.5 ng μg-1, which were higher than or comparable to those from various combustion sources. The findings from this study confirm the industrial emission to be an important source of nitrated aromatic compounds in the atmosphere. The substantial emissions of nitrated aromatic compounds from various industries reported in this study provide the fundamental basis for further emission estimation and pollution control.
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Affiliation(s)
- Chunying Lu
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Xinfeng Wang
- Environment Research Institute, Shandong University, Qingdao, 266237, China.
| | - Jun Zhang
- Environment Research Institute, Shandong University, Qingdao, 266237, China; Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232, Villigen, Switzerland
| | - Zhiyi Liu
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Yiheng Liang
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Shuwei Dong
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Min Li
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Jing Chen
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Haibiao Chen
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Huijun Xie
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Likun Xue
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Wenxing Wang
- Environment Research Institute, Shandong University, Qingdao, 266237, China
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Tang T, Yue Z, Wang J, Chen T, Qing C. Goethite promoted biodegradation of 2,4-dinitrophenol under nitrate reduction condition. JOURNAL OF HAZARDOUS MATERIALS 2018; 343:176-180. [PMID: 28950205 DOI: 10.1016/j.jhazmat.2017.09.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 08/18/2017] [Accepted: 09/08/2017] [Indexed: 06/07/2023]
Abstract
Iron oxide may interact with other pollutants in the aquatic environments and further influence their toxicity, transport and fate. The current study was conducted to investigate the biodegradation of 2,4-dinitrophenol (2,4-DNP) in the presence of iron oxide of goethite under anoxic condition using nitrate as the electron acceptor. Experiment results showed that the degradation rate of 2,4-DNP was improved by goethite. High performance liquid chromatography-mass spectra analysis results showed that goethite promoted degradation and transformation of 2,4-diaminophenol and 2-amino-4-nitrophenol (2-nitro-4-aminophenol). Microbial community analysis results showed that the abundance of Actinobacteria, which have the potential ability to degrade PAHs, was increased when goethite was available. This might partially explain the higher degradation of 2,4-DNP. Furthermore, another bacterium of Desulfotomaculum reducens which could reduce soluble Fe(III) and nitrate was also increased. Results further confirmed that nanomaterials in the aquatic environment will influence the microbial community and further change the transformation process of toxic pollutants.
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Affiliation(s)
- Ting Tang
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Zhengbo Yue
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China; CAS Key Laboratory of Urban Pollutant Conversion, University of Science and Technology of China, China.
| | - Jin Wang
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Tianhu Chen
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Chengsong Qing
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
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Density functional theoretical studies on effect of intramolecular hydrogen bonds on reduction of nitrophenols. Chem Res Chin Univ 2017. [DOI: 10.1007/s40242-017-7066-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lin W, Sun S, Xu P, Dai Y, Ren J. Evaluating the primary and ready biodegradability of dianilinodithiophosphoric acid. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:232. [PMID: 27000317 DOI: 10.1007/s10661-016-5242-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 03/14/2016] [Indexed: 06/05/2023]
Abstract
Dianilinodithiophosphoric acid (DDA) is widely used as sulfide mineral flotation collector in China. It is necessary to investigate the biodegradability of DDA to provide the fundamental knowledge to assess the environmental fate in the risk assessment of DDA and to design and operate the DDA flotation wastewater biological treatment plant. In the present study, the primary and ready aerobic biodegradations of DDA were studied and the primary biodegradation kinetic model of DDA was developed. The results show that DDA displays a good primary biodegradability and its biodegradation ratio reaches 99.8 % in 7 days. In contrast, DDA is not easily ready biodegradable; hence, it is a partially biodegradable organic compound. The primary aerobic biodegradation kinetics can be described using the first-order reaction kinetics equation: C = 19.72191e(-0.01513t).
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Affiliation(s)
- Weixiong Lin
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
- Guangdong Vocational College of Environmental Protection Engineering, Foshan, 528216, China
| | - Shuiyu Sun
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
- Guangdong Vocational College of Environmental Protection Engineering, Foshan, 528216, China.
| | - Pingting Xu
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yongkang Dai
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Jie Ren
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
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